1071181620407 has 2 divisors, whose sum is σ = 1071181620408. Its totient is φ = 1071181620406.

The previous prime is 1071181620403. The next prime is 1071181620493. The reversal of 1071181620407 is 7040261811701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1071181620407 - 2² = 1071181620403 is a prime.

It is a super-2 number, since 2×1071181620407² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071181620403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535590810203 + 535590810204.

It is an arithmetic number, because the mean of its divisors is an integer number (535590810204).

Almost surely, 2^{1071181620407} is an apocalyptic number.

1071181620407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071181620407 is an equidigital number, since it uses as much as digits as its factorization.

1071181620407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 38.

The spelling of 1071181620407 in words is "one trillion, seventy-one billion, one hundred eighty-one million, six hundred twenty thousand, four hundred seven".